Have you ever heard of a space elevator? If you have not is basically an elevator that goes from the ocean to a platform in space. It sounds simple, but it is a very complex, but it is a very machine.
If you want to learn more, Space.com has interesting article on the subject. Below is an excerpt: "Blue-sky thinkers like Edwards envision the space elevator as a revolutionary way of getting from Earth into space. The primary system is a ribbon attached at one end to Earth on a floating platform located in the equatorial Pacific Ocean. The other end of the ribbon is in space, beyond geosynchronous orbit."